TextDecorator.h

/*
 
MIT License
 
Copyright (c) 2017 FMI Open Development / Markus Peura, first.last@fmi.fi
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
 
*/
/*
Part of Rack development has been done in the BALTRAD projects part-financed
by the European Union (European Regional Development Fund and European
Neighbourhood Partnership Instrument, Baltic Sea Region Programme 2007-2013)
*/
#ifndef TEXT_DECORATOR_H_
#define TEXT_DECORATOR_H_
 
#include <iostream>
#include <sstream>
#include <list>
#include <string>
 
#include <drain/TextStyle.h>
#include <drain/TypeUtils.h>
 
#include "Flags.h"
 
namespace drain
{
 
 
// Compare this with TextStyle. Join or separate?
 
 
class TextDecorator {
 
protected:
 
    // input sep
    std::string separator;
 
public:
 
    //enum Colour {NONE=0, DEFAULT=1, BLACK=2, GRAY=4, RED=8, GREEN=16, YELLOW=32, BLUE=64, PURPLE=128, CYAN=256, WHITE=512};
 
    typedef drain::EnumFlagger<drain::SingleFlagger<TextStyle::Colour> > ColourFlag;
 
    typedef drain::EnumFlagger<drain::MultiFlagger<TextStyle::Style> > StyleFlags;
 
    typedef drain::EnumFlagger<drain::SingleFlagger<TextStyle::Line> > LineFlag;
 
 
 
    ColourFlag color;
    StyleFlags style;
    LineFlag    line;
    //std::map<std::type_info,size_t> state;
 
    inline
    TextDecorator() : separator(","), color(TextStyle::DEFAULT_COLOR){
        reset(); // ??
    }
 
    inline
    TextDecorator(const TextDecorator & deco) :separator(deco.separator), color(deco.color), style(deco.style), line(deco.line){
        reset(); // ??
    }
 
    virtual inline
    ~TextDecorator(){
        //reset(); ???
    }
 
    inline
    std::ostream & begin(std::ostream & ostr) const {
        return _begin(ostr);
    }
 
    inline
    std::ostream & begin(std::ostream & ostr, const std::string & conf){
        set(conf);
        return _begin(ostr);
    }
 
 
    inline
    std::ostream & end(std::ostream & ostr) const {
        return _end(ostr);
    }
 
    inline
    void setSeparator(const std::string & separator){
        this->separator = separator;
    }
 
    //std::list<>
    void reset(){
        style.reset();
        color.reset();
        line.reset();
    }
 
    template<typename T, typename ... TT>
    void set(T arg, const TT &... args) {
        //set(arg);
        reset();
        add(arg, args...);
    };
 
    /*
    template<typename ... TT>
    void set(const std::string & keys, const TT &... args){
        reset();
        addKeys(keys);
        add(args...);
    }
    */
 
 
    template<typename ... TT>
    inline
    void add(const std::string & keys, const TT &... args){
        // std::cout << "Handling1: " << keys << '\n';
        addKeys(keys); // string handler
        add(args...);
    }
 
    template<typename ... TT>
    inline
    void add(const char *keys, const TT &... args){
        // std::cout << "Handling2: " << keys << '\n';
        addKeys(keys); // string handler
        add(args...);
    }
 
    template<typename ... TT>
    inline
    void add(char *keys, const TT &... args){
        // std::cout << "Handling3: " << keys << '\n';
        addKeys(keys); // string handler
        add(args...);
    }
 
    template<typename T, typename ... TT>
    void add(T arg, const TT &... args) {
        // std::cout << "Adding:" << arg << ':' << typeid(arg).name() << '\n';
        add(arg);
        add(args...);
    };
 
    inline
    void add(TextStyle::Colour c){
        color.set(c);
    }
 
    inline
    void add(TextStyle::Line l){
        line.set(l);
    }
 
    inline
    void add(TextStyle::Style s){
        style.add(s);
    }
 
 
 
 
    void debug(std::ostream & ostr) const;
 
    //std::string str;
 
protected:
 
 
    virtual inline
    std::ostream & _begin(std::ostream & ostr) const {
        return ostr;
    }
 
    virtual inline
    std::ostream & _end(std::ostream & ostr) const {
        return ostr;
    }
 
 
    inline
    void set(){}; // could be reset? No! This is the last one called..
 
    inline
    void add(){};
 
    void addKey(const std::string & key);
 
    void addKeys(const std::string & keys);
 
};
 
 
 
inline
std::ostream & operator<<(std::ostream & ostr, const TextDecorator & decorator){
    //decorator.debug(ostr);
    ostr << decorator.style << '=' << decorator.style.getValue();
    ostr << ':';
    ostr << decorator.color << '=' << decorator.color.getValue();
    ostr << ':';
    ostr << decorator.line  << '=' << decorator.line.getValue();
    return ostr;
}
 
 
 
class TextDecoratorVt100 : public drain::TextDecorator {
 
public:
 
    virtual inline
    ~TextDecoratorVt100(){
    }
 
 
    template <typename F>
    static
    void appendCodes(const EnumFlagger<F> & styleFlags, std::list<int> & codes);
 
 
protected:
 
    virtual
    std::ostream & _begin(std::ostream & ostr) const;
 
    virtual
    std::ostream & _end(std::ostream & ostr) const;
 
 
};
 
template <typename F>
void TextDecoratorVt100::appendCodes(const EnumFlagger<F> & styleFlags, std::list<int> & codes){
 
    if (styleFlags){ // is non-zero
 
        std::list<typename EnumFlagger<F>::value_t> l;
 
        FlagResolver::valuesToList(styleFlags.value, styleFlags.getDict(), l);
 
        for (typename EnumFlagger<F>::value_t v: l){
            codes.push_back(TextStyleVT100::getIntCode(v));
        }
 
    }
 
}
 
 
} // ::drain
 
#endif